This demonstration/activity introduces students to the concept of limiting reagent in a chemical reaction. Too often, students think that one can produce more product by using larger quantities of reactants. This demonstration/activity is specifically designed to surprise students and to make them appreciate the concept of stoichiometric quantities.
Categories: Teacher Demonstration
This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks. read more
Categories: Lab/Student Activity
I wanted an activity for students that would get them thinking about the shapes of molecules - and how they could connect this to their prior knowledge of Lewis diagrams and chemical bonding. I use a... read more
It is our goal to create a library of videos showcasing the diversity of careers in STEM and the diversity of the people who do them. We want to be able to provide students with Career ideas, add... read more